Creating an Authorize.net Payment Method

Transaction Key: The transaction key is used server-side to create the actual transactions. A new key can be created in the Authorize.net merchant interface by navigating to Account > Settings > Security Settings > API Credentials & Keys.

Client Key: The public client key that can be used on the client-side. It can be foundor created in the Authorize.net merchant interface by navigating to Account > Settings > Security Settings > General Security Settings > Manage Public Client Key.

Test Mode: Indicates if these credentials are for the sandbox or the live mode. Make sure to also set the payment method to be available in the appropriate mode only.